Comment on

• Gray matter structural alterations in psychotropic drug-naive pediatric obsessive-compulsive disorder: an optimized voxel-based morphometry study.

  Szeszko PR, Christian C, Macmaster F, Lencz T, Mirza Y, Taormina SP, Easter P, Rose M, Michalopoulou GA, Rosenberg DR. Szeszko PR, et al. Am J Psychiatry. 2008 Oct;165(10):1299-307. doi: 10.1176/appi.ajp.2008.08010033. Epub 2008 Apr 15. Am J Psychiatry. 2008. PMID: 18413702
• Compulsive hoarding: OCD symptom, distinct clinical syndrome, or both?

  Pertusa A, Fullana MA, Singh S, Alonso P, Menchón JM, Mataix-Cols D. Pertusa A, et al. Am J Psychiatry. 2008 Oct;165(10):1289-98. doi: 10.1176/appi.ajp.2008.07111730. Epub 2008 May 15. Am J Psychiatry. 2008. PMID: 18483134
• White matter abnormalities in patients with obsessive-compulsive disorder and their first-degree relatives.

  Menzies L, Williams GB, Chamberlain SR, Ooi C, Fineberg N, Suckling J, Sahakian BJ, Robbins TW, Bullmore ET. Menzies L, et al. Am J Psychiatry. 2008 Oct;165(10):1308-15. doi: 10.1176/appi.ajp.2008.07101677. Epub 2008 Jun 2. Am J Psychiatry. 2008. PMID: 18519525